Home / 1,353,782,087.46-1,868,046,688.52-789,125,692.80

Finding the Fourth Proportional to 1,353,782,087.46, 1,868,046,688.52 and 789,125,692.80

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Solution

The fourth proportional to 1,353,782,087.46, 1,868,046,688.52 and 789,125,692.80 is: 1,088,892,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,782,087.46 : 1,868,046,688.52 = 789,125,692.80 : x
  2. Step 2: Convert to fraction form
    1,353,782,087.46/1,868,046,688.52 = 789,125,692.80/x
  3. Step 3: Cross multiply
    1,353,782,087.46x = 1,868,046,688.52 × 789,125,692.80
  4. Step 4: Simplify right side
    1,353,782,087.46x = 1,474,123,637,261,090,816
  5. Step 5: Solve for x
    x = 1,474,123,637,261,090,816/1,353,782,087.46
  6. Step 6: Final answer
    x = 1,088,892,851.31

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Double scale
Find fourth proportional to 1,353,782,088.46, 1,868,046,689.90 and 789,125,693.80
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.